package com.atguigu.rabbitmq.one;

import com.rabbitmq.client.*;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

/**
 * 消费者：接收消息的
 * @author 连志阳
 * @since 2022/2/8
 */
public class Consumer {
    //队列名称
    public static final String QUEUE_NAME = "hello";
    
    //接收消息
    public static void main(String[] args) throws IOException, TimeoutException {
        //创建连接工厂
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("192.168.200.129");
        factory.setUsername("admin");
        factory.setPassword("123");
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();
        
        //声明接收消息
        DeliverCallback deliverCallback = (consumerTag, message) -> {
            System.out.println(new String(message.getBody()));
        };
        //取消消息时的回调
        CancelCallback cancelCallback = consumerTag -> {
            System.out.println("消息消费被终端");
        };
        /*
        消费者消费消息
        1.消费哪个队列
        2.消费成功之后是否要自动应答，true自动应答，false手动应答
        3.消费者未成功消费的回调
        4.消费者取消消费的回调
         */
        channel.basicConsume(QUEUE_NAME, true, deliverCallback, cancelCallback);
    
    }
}
